Pump-rod coupling.



A. L. DOUGLASS. PUMP-ROD COUPLING.

APPLIOATIONAIILED JULY 7, 1911.

1,028,689. v Patented June 4, 1912.

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aitornegl ARTHUR L. DOUGLASS, OF TULAROSA, NEW MEXICO.

PUMP-ROD COUPLING.

Specification of Letters Patent.

Patented June 4, 1912.

Application filed July 7, 1911. Serial No. 637,389.

To all whom it may concern Be it known that I, ARTHUR L. DoUeLAss,

a citizen of the United States of America,

residing at Tularosa, in the county of Otero and State of New Mexico,have invented certain new and useful Improvements in Pump-Rod Couplings,of which the following is a specification.

This invention relates to improvements in couplings and particularly tocouplings for pumps and has for an object the arrangement of an improvedpump lift for permitting the ready coupling and uncoupling of the pumprod with a Wind mill rod.

A further object of the invention is the arrangement in a pump liftcoupling of improved means for connecting the pump rod and the wind millrod, which may be moved pivotally to its position and from its positionfor coupling the rods together and have a locking sleeve positioned overthe pivotally mounted members for locking the same against movement whenthe rods are coupled together so as to positively insure a ,properoperation thereof.

With these and other objects in View the invention comprises certainnovel constructions, combinations and arrangement of parts, as willhereinafter be more fully described and claimed.

In the drawings :-Figure 1 is a side View of the invention applied. Fig.2 is an enlarged edge view of the invention. Fig. 3 is an enlarged sideview of the invention. Fig. 4: is a detail fragmentary View of theinvention showing the coupling member in partially open position.

In forming a device embodying the invention the usual pump rod and windmill rod is provided to which are connected the parts of the coupling.

The coupling comprises a pair of rigidly positioned bars connected withthe wind mill rod and a pair of levers pivotally mounted on the saidbars and designed to be moved thereover for receiving a locking sleevesurrounding the Wind mill rod coupling. The rigidly mounted bars and thepivotally mounted levers are formed with notches which receive lugs orbolts connected with the pump rod, so as to hold the pump rod properlyconnected with the Wind mill rod.

In order that the invention may be more clearly understood, anembodiment of the same is shown in the accompanying drawings, in which 1indicates a pump of any desired kind provided with pump rod 2. A windmill rod 3 is adapted to be connected with pump rod 2 for reciprocatingthe same and causing the pump 1 to act in the usual manner. Rigidlyconnected with the wind mill rod 3 are a pair of bars 4:. Bars 4 arebent out at 5 and back again at 6 for forming a bowed-out portion 7.Arranged in bowedout portion 7 are notches 8. The lower ends of the bars4 have pivoted thereto a pair of levers 9 which are formed with notches10. Notches 10 are arranged to register with notches 8 so that when thelevers are in their folded or closed position, as shown in Figs. 2 and3, the looking or binding sleeve may be slid thereover for locking thesame in position, the levers and rigidly mounted bars accommodating thebolts 12. Of course, if desired, lugs or other projections could be usedinstead of bolts 12.

When it is desired to disconnect the rods 2 and 3, sleeve 11 is drivenupwardly until the same is disengaged and then the levers 9 are moveddownwardly to substantially the position shown in dotted lines in Fig.3. When it is desired to couple or look the rods together the lowermostbolt 12 is placed in one of the sockets 10 of the levers 9 and then thelevers forced over into the.

position shown in Fig. 3, which will cause both of the bolts 12 tooccupy the notches or sockets 8 and 10. The sleeve 11 is then drivendown over the upper ends of the levers 9, which will lock the levers inposition. The sleeve 11 is preferably beveled so that when it is drivendown it will clamp the levers properly in position and also by suchclamping act-ion resist removal.

The coupling has been specifically described in connection with a pumprod and Windmill rod, but it will be evident that it may be used as acoupling for tent poles and for coupling any other device where twoabutting poles are desired to be coupled together. Also it will beevident that the coupling device may be easily operated with rodsarranged to extend at an angle to the horizontal or in a perfectlyhorizontal position, as well as a vertical position.

What I claim is 1. In a device of the character described,

the combination with a pump rod and a said rigid members for connectingthe pump rod and the powerrod, 2. In a'device of the characterdescribed, the combination with a pump rod and a power rod, of a pair ofbars connected with said power rod formed with a plurality of notches, apairof arms pivotally mounted on said bars and formed with notchesregistering with said first mentioned notches, means projecting fromsaid pump rod for engaging said bars and said arms in said notches and alocking member for locking said levers against movement.

3. In a device of the character described, the combination with a pumprod and a power rod, of bolts projecting from said pump rod, rigidlymounted bars extending from said power rod formed with notches foraccommod'atingsaid bolts, a pair of arms pivotally mounted on the lowerend 01 said barsand formed with notches registering with said firstmentioned notches and accommodating said bolts, said arms being designedtolift' into position and hold in "position said bolts and a slidablesleeve fitting over the ends of said levers'o-pposite their pivotalpoint for locking the same against movement.

In testimony whereof I aflix my signature in presence of two Witnesses.

ARTHUR L. DOUGLASS.

I Witnesses:

T. T. OSBY,

H. DOUGLASS.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents Washington, I); G. e

